Major rework in progress

system/configuration/default.nix

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+{ config, lib, pkgs, ... }: {
+
+    imports = [
+        ./generic
+        ./laptop
+        ./homebox
+    ];
+
+    sysconfig.laptop.enable = lib.mkDefault false;
+    sysconfig.homebox.enable = lib.mkDefault false;
+    sysconfig.generic.enable = lib.mkDefault true;
+}

system/configuration/generic/default.nix

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+{}

system/configuration/homebox/default.nix

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+{}

system/configuration/laptop/default.nix

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+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, lib, pkgs, core_inputs, ... }:
+
+{
+
+    options = {
+        sysconfig.laptop.enable = lib.mkEnableOption "uses laptop config";
+    };
+
+    config = lib.mkIf config.sysconfig.laptop.enable {
+
+        assertions = [
+            {
+                assertion = !config.sysconfig.homebox.enable;
+                message = "sysconfig laptop conflicts with homebox";
+            }
+        ];
+
+        imports = [];
+
+        boot = {
+            loader = {
+                systemd-boot.enable = true;
+                efi.canTouchEfiVariables = true;
+            };
+            kernelParams = [ "snd-intel-dspcfg.dsp_driver=1" ];
+        };
+        
+        hardware = {
+            opengl = {
+                enable = true;
+                driSupport = true;
+                extraPackages = with pkgs; [
+                    nvidia-vaapi-driver
+                ];
+            };
+
+            nvidia = {
+                modesetting.enable = true;
+                open = false; #suspend fails with open drivers
+                nvidiaSettings = true;
+                package = config.boot.kernelPackages.nvidiaPackages.beta;
+                prime = {
+                    intelBusId = "PCI:0:2:0";
+                    nvidiaBusId = "PCI:1:0:0";
+#                   #sync.enable = true;
+                    offload = {
+                        enable = true;
+                        enableOffloadCmd = true;
+                    };
+                };
+            };
+
+            bluetooth.enable = true;
+
+            pulseaudio.enable = false;
+        };
+        
+        networking = {
+            hostName = "laptop";
+            nameservers = [ "1.1.1.1#one.one.one.one" "1.0.0.1#one.one.one.one" ];
+            networkmanager.enable = true;
+        };
+        
+        services = {
+            xserver = {
+                enable = true;
+                videoDrivers = [ "nvidia" ];
+            };
+
+            displayManager.enable = true;
+        };
+    };
+}

system/configuration/laptop/hardware-configuration.nix

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+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usb_storage" "sd_mod" "sdhci_pci" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/78c0964d-c09e-4e31-8a73-eb719d79917a";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/AE5E-AC86";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.eno1.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlo1.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}